CN210467747U - Organic composite tube for high-voltage drop-out fuse - Google Patents

Abstract

The utility model discloses a high pressure drop out fuse is with organic compound pipe, including inner tube, outer tube and baffle, the inner tube comprises high temperature resistant layer, first articulamentum, heat-resistant layer, second articulamentum and dampproof course, pipe one side sets gradually outside to by interior including high temperature resistant layer, first articulamentum, heat-resistant layer, second articulamentum and waterproof layer, and closely links to each other, outer tube fixed connection is in the inner tube outside, the baffle is provided with two, two the baffle all sets up inside including the inner tube. The utility model discloses a set up the baffle, and then make a large amount of gases that the device produced when electric power transmission system breaks down can form an airtight little space under the baffle effect to make electric arc can be by rapid putting out, and then make the efficiency when the device cuts off the power supply higher, avoid producing extra loss, simultaneously through setting up the effectual heat-resisting effect that improves the device on high temperature resistant layer and heat-resisting layer, and then improved the life of device.

Description

Organic composite tube for high-voltage drop-out fuse

Technical Field

The utility model relates to a fuse technical field specifically is a high pressure drop out fuse is with organic compound pipe.

Background

The fuse is an electric appliance which fuses a melt by using heat generated by the fuse when current exceeds a specified value and disconnects a circuit, and the principle of the fuse is that a metal conductor is used as the melt to be connected in series in the circuit, and the fuse fuses due to self heating when overload or short-circuit current passes through the melt, so that the circuit is disconnected;

the high-temperature drop-out fuse is one of common fuses and mainly comprises an insulating support, a moving contact, a static contact and a fuse tube, the static contact is arranged at two ends of the insulating support, the fuse tube consists of an inner arc extinguishing tube and an outer phenolic paper tube or epoxy glass fiber cloth tube, it is mainly suitable for power systems with the frequency of 50HZ and the rated voltage of 35KV and below, is arranged on the high-voltage side of a distribution transformer or a main power distribution circuit, has the main functions of being capable of matching with an isolating switch to replace an automatic air switch in places with low requirements on protection performance, being capable of matching with a load switch to replace a high-price circuit breaker, and having the functions of short-circuit protection, overload protection and isolating circuit, the composite tube is used as an important component of the high-voltage drop-out fuse and has an important function for the use of the high-voltage drop-out fuse.

However, the organic composite tube for the existing high-voltage drop-out fuse has the following defects:

1. when the organic composite tube for the existing high-voltage drop-out fuse is used, a large amount of gas generated in the tube is caused when a power transmission system breaks down, and the gas cannot be concentrated to extinguish electric arcs due to the fact that the composite tube is not provided with a corresponding partition structure, so that the power-off efficiency of the device is low, and extra loss is easily caused.

2. The existing organic composite tube for the high-voltage drop-out fuse has poor high-temperature resistance due to the defects of the structure, so that the composite tube is easily damaged under the action of high temperature, and the service life of the composite tube is further influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high pressure drop out is organic compound pipe for fuse, it uses when using to have solved current high pressure drop out is organic compound pipe for fuse, because when electric power transmission system breaks down, lead to a large amount of gases of intraductal production, and because compound pipe does not have corresponding blocking structure, lead to gaseous can not concentrate on putting out electric arc, thereby the outage efficiency that leads to the device is lower, and then lead to the problem of extra loss easily, the current high pressure drop out is organic compound pipe for fuse has been solved simultaneously because the defect of structure itself, the high temperature resistant effect that leads to compound pipe is relatively poor, thereby lead to compound pipe to damage easily under suffering high temperature effect, and then influence the problem of the life of compound pipe.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high pressure drop out fuse is with organic compound pipe, includes inner tube, outer tube and baffle, the inner tube comprises high temperature resistant layer, first articulamentum, heat-resistant layer, second articulamentum and dampproof course, pipe one side is set gradually outside to by interior including high temperature resistant layer, first articulamentum, heat-resistant layer, second articulamentum and waterproof layer, and closely links to each other, outer tube fixed connection is in the inner tube outside, the baffle is provided with two, two including the baffle all sets up intraduct, and two including the baffle distributes inside intermediate position both sides, the opening has been seted up to the baffle intermediate position.

Preferably, the partition plate is internally provided with air holes which are respectively arranged at the top and the bottom of the opening, and the partition plate is made of high-temperature-resistant materials, so that the safety of the device is ensured.

Preferably, the diameter of gas pocket is 1/4 of opening diameter, the inside intermediate position of gas pocket is provided with the hot melt piece, hot melt piece top and bottom respectively with gas pocket inner wall fixed connection, the hot melt piece adopts plastics to make for the material for the efficiency is higher when the device cuts off the power supply, avoids producing extra loss.

Preferably, the high temperature resistant layer is made of silicon nitride, the thickness of the high temperature resistant layer is 0.2mm, and the service life of the inner tube is effectively prolonged.

Preferably, the heat-resistant layer is made of silicate, and the thickness of the heat-resistant layer is consistent with that of the high-temperature-resistant layer, so that the service life of the inner pipe is effectively prolonged.

Preferably, the moisture-proof layer is made of epoxy resin, and the moisture-proof layer is consistent with the high-temperature-resistant layer in thickness, so that normal use of the device is guaranteed.

The utility model provides a high pressure drop out fuse is with organic compound pipe possesses following beneficial effect:

(1) the utility model discloses a set up the inner tube, the baffle, the opening, when using, because when electric power transmission system breaks down, fault current fuses rapidly with the fuse between the baffle, and produce electric arc between the baffle, the inner tube produces a large amount of gases under the effect of electric arc, gas forms a less space near electric arc under the effect of baffle, and gas flows rapidly between the baffle, can make gas can carry out rapid putting out with electric arc, and then make the efficiency when the device cuts off the power supply higher, avoid producing extra loss.

(2) The utility model discloses a set up high temperature resistant layer, heat-resistant layer and outer tube, and then make the device when using, fuse between with the baffle because of the fault current fuses rapidly, and the high temperature that produces electric arc between the baffle and cause can make the device can not suffer from destruction under the effect on high temperature resistant layer, and further strengthened the heat resistance of device under the effect on heat-resistant layer, and protect it through being provided with the outer tube in the outer side of the inner tube, and then make the inner tube avoid receiving the influence of weather reason, thereby the effectual life who prolongs the device.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an overall side view of the present invention;

FIG. 3 is a cross-sectional view of the inner tube of the present invention;

fig. 4 is an enlarged view of the structure at a in fig. 1 of the present invention.

In the figure: 1. an inner tube; 2. an outer tube; 3. a partition plate; 4. a high temperature resistant layer; 5. a first tie layer; 6. a heat-resistant layer; 7. a second connection layer; 8. a moisture barrier; 9. an opening; 10. air holes; 11. a hot melt sheet.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-4, the utility model provides a technical solution: the utility model provides a high pressure drop out fuse is with organic compound pipe, includes inner tube 1, outer tube 2 and baffle 3, inner tube 1 comprises high temperature resistant layer 4, first articulamentum 5, heat-resistant layer 6, second articulamentum 7 and dampproof course 8, high temperature resistant layer 4, first articulamentum 5, heat-resistant layer 6, second articulamentum 7 and waterproof layer set gradually outside to by interior in inner tube 1 one side, and closely link to each other, 2 fixed connection in the 1 outside in inner tube of outer tube, baffle 3 is provided with two, two baffle 3 all sets up inside inner tube 1, and two 3 distributions of baffle are in 1 inside intermediate position both sides in inner tube, opening 9 has been seted up to 3 intermediate positions of baffle.

The inside gas pocket 10 of having seted up of baffle 3, gas pocket 10 sets up respectively in the top and the bottom of opening 9, baffle 3 adopts high temperature resistant material to make, through setting up gas pocket 10, and then when the pressure between baffle 3 was too big, can carry out certain pressure release through gas pocket 10 to guarantee the safety of device.

The diameter of the air hole 10 is 1/4 of the diameter of the opening 9, a hot melt sheet 11 is arranged in the middle of the inside of the air hole 10, the top and the bottom of the hot melt sheet 11 are respectively fixedly connected with the inner wall of the air hole 10, the hot melt sheet 11 is made of plastic, when the device is used, when a power system fails, a fuse wire between the partition plates 3 is rapidly fused by fault current, an electric arc is generated between the partition plates 3, the inner tube 1 generates a large amount of gas under the action of the electric arc, the gas forms a small space near the electric arc under the action of the partition plates 3, the gas rapidly flows between the partition plates 3, the electric arc can be rapidly extinguished by the gas, the hot melt sheet 11 in the air hole 10 can be fused when the gas pressure between the partition plates 3 reaches a certain degree, and then the electric arc is extinguished among the partition plates 3 and then is diffused outwards through the air hole 10, thereby relieving the gas pressure between the clapboards 3, further ensuring the device to have higher efficiency when power is off and avoiding generating additional loss.

The high temperature resistant layer 4 adopts silicon nitride to make as the material, just the thickness of high temperature resistant layer 4 is 0.2mm, through adopting silicon nitride material, and then makes inner tube 1 have higher high temperature resistant effect to the effectual life who prolongs inner tube 1.

The heat-resistant layer 6 is made of silicate, the thickness of the heat-resistant layer 6 is consistent with that of the high-temperature-resistant layer 4, the silicate is used as the material of the heat-resistant layer 6, the heat-resistant effect of the inner tube 1 is further improved, and therefore the service life of the inner tube 1 is effectively prolonged.

Dampproof course 8 adopts epoxy to make for the material, just dampproof course 8 with high temperature resistant layer 4's thickness is unanimous, through adopting epoxy material preparation dampproof course 8, and then makes inner tube 1 when the difference in temperature is great, avoids inside the normal use that the comdenstion water influences the device appearing, and then is favorable to guaranteeing the normal use of device.

The working principle is as follows: when the device is used, when the power transmission system breaks down, the fuse wire between the partition plates 3 is rapidly fused by fault current, electric arcs are generated between the partition plates 3, the inner pipe 1 generates a large amount of gas under the action of the electric arcs, the gas forms a small space near the electric arcs under the action of the partition plates 3 and flows rapidly between the partition plates 3, so that the electric arcs can be rapidly extinguished by the gas, the hot melting pieces 11 inside the air holes 10 can be fused when the gas pressure between the partition plates 3 reaches a certain degree, and further the large amount of gas is diffused outwards through the air holes 10 after the electric arcs are extinguished between the partition plates 3, so that the gas pressure between the partition plates 3 is relieved, and the device is provided with the high-temperature resistant layer 4, the heat-resistant layer 6 and the outer pipe 2, so that when the device is used, the fuse wire between the partition plates 3 is rapidly fused by the fault current, and the high temperature that produces electric arc between baffle 3 and cause can make the device can not suffer destruction under the effect of high temperature resistant layer 4, and has further strengthened the heat resistance of device under the effect of heat resistant layer 6, and protect it through being provided with outer tube 2 in the inner tube 1 outside, and then make inner tube 1 avoid receiving the influence of weather reason to the effectual life who prolongs the device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a high pressure drop out fuse is with organic compound pipe, includes inner tube (1), outer tube (2) and baffle (3), its characterized in that: inner tube (1) comprises high temperature resistant layer (4), first articulamentum (5), heat-resistant layer (6), second articulamentum (7) and dampproof course (8), high temperature resistant layer (4), first articulamentum (5), heat-resistant layer (6), second articulamentum (7) and waterproof layer set gradually by interior to exterior in inner tube (1) one side, and closely link to each other, outer tube (2) fixed connection is in the inner tube (1) outside, baffle (3) are provided with two, two baffle (3) all set up inside inner tube (1), and two baffle (3) distribute in the inside intermediate position both sides of inner tube (1), opening (9) have been seted up to baffle (3) intermediate position.

2. The organic composite tube for the high-voltage drop-out fuse according to claim 1, wherein: the air holes (10) are formed in the partition plate (3), the air holes (10) are respectively formed in the top and the bottom of the opening (9), and the partition plate (3) is made of high-temperature-resistant materials.

3. The organic composite tube for the high-voltage drop-out fuse according to claim 2, wherein: the diameter of air hole (10) is 1/4 of opening (9) diameter, the inside intermediate position of air hole (10) is provided with hot melt piece (11), hot melt piece (11) top and bottom respectively with air hole (10) inner wall fixed connection, hot melt piece (11) adopt plastics to make for the material.

4. The organic composite tube for the high-voltage drop-out fuse according to claim 1, wherein: the high temperature resistant layer (4) is made of silicon nitride, and the thickness of the high temperature resistant layer (4) is 0.2 mm.

5. The organic composite tube for the high-voltage drop-out fuse according to claim 1, wherein: the heat-resistant layer (6) is made of silicate, and the thickness of the heat-resistant layer (6) is consistent with that of the high-temperature-resistant layer (4).

6. The organic composite tube for the high-voltage drop-out fuse according to claim 1, wherein: the moisture-proof layer (8) is made of epoxy resin, and the thickness of the moisture-proof layer (8) is consistent with that of the high-temperature-resistant layer (4).

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